Cause : Shaft D/Q current overflow comes when Shaft D-axis and Q-axis current overflows. This can lead to various issues, including reduced performance, motor damage, and system instability.

Er.207 fault in inovance IS650 servo drive indicates Shaft D/Q current overflow. This means the current flowing through the motor's D-axis and Q-axis windings has exceeded the drive's maximum allowable limit.

1. f the fault persists after you power on servo drive several times and restore default setting, it indicates that the servo drive is faulty.
2. Replace the servo drive.